When does optimism — the Bush campaign's favorite word these days — become an inability to face facts? On Friday, President Bush insisted that a seriously disappointing jobs report, which fell far short of the pre-announcement hype, was good news: "We're witnessing steady growth, steady growth. And that's important. We don't need boom-or-bust-type growth." But Mr. Bush has already presided over a bust. For the first time since 1932, employment is lower in the summer of a presidential election year than it was on the previous Inauguration Day. Americans badly need a boom to make up the lost ground. And...